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Дата индексирования: Sun Apr 10 04:44:07 2016
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Focal line
Focal line of the feed cabin No. 1


Figure 1.

The input parts of radiometers with primary feeds are placed on secondary mirror focal line taking into account a task to minimize losses in the front-end waveguides and reduce aberrational scatter at short wavelength range. This enables the problem of efficient observations over the whole feed cabin No. 1 frequency range. From the right of the picture is a new developed three-frequency feed with matched phase center at the wavelengths 13, 31 and 49 cm, from the left is a new version radiometric system "MARS-2".
The scale drawing of secondary mirror No. 1 focal line is shown in figure 2.



Figure 2.

Intervals between of primary feeds centers and their strap reading are given in millimeters.